Question

What does the statement ‘induction precedes attraction’ mean?

Answer 1

The degree of induced magnetism depends on the nature of the magnetic material.
The degree of induced magnetism is directly proportional to the strength of the inducing magnet being used, and inversely proportional to the distance between the inducing magnet and the magnetic material.AS a reason for all these properties the magnetic induction has an ability to precedes magnetic attraction. 

Answer 2

1-When an unmagnetised bar is placed near a magnet,the bar becomes a magnet,that is,the bar acquires the property of attracting iron fillings when they are brought near its ends.If the magnet is now removed,it is seen that nearly all the iron fillings which have clung to it fall down,that is,the bar loses magnetism.This is called induced magnetism and thus it is temporary.


2-When a piece of iron is brought near one end of a magnet,the nearer end of the piece acquires the opposite polarity.Since unlike poles attract each other,therefore the iron piece is attracted towards the end of the magnet.Thus the piece of iron first becomes a magnet and then it is attracted.In other words,induction precedes attraction.


Hope I helped!